diff --git a/cmd/gormgen/pkg/parser.go b/cmd/gormgen/pkg/parser.go
index 7ab7fc3..0815fe6 100644
--- a/cmd/gormgen/pkg/parser.go
+++ b/cmd/gormgen/pkg/parser.go
@@ -78,7 +78,6 @@ func (p *Parser) parseTypes(file *ast.File) (ret []structConfig) {
 					optionField fieldConfig
 				)
 
-				// type is ident, get onlyField type
 				if t, _ok := v.Type.(*ast.Ident); _ok {
 					optionField.FieldType = t.String()
 				} else {
@@ -89,7 +88,6 @@ func (p *Parser) parseTypes(file *ast.File) (ret []structConfig) {
 					}
 				}
 
-				// get file name
 				if len(v.Names) > 0 {
 					optionField.FieldName = v.Names[0].String()
 					optionField.ColumnName = gorm.ToDBName(optionField.FieldName)
diff --git a/cmd/gormgen/pkg/template.go b/cmd/gormgen/pkg/template.go
index f31a0f7..0829d7a 100644
--- a/cmd/gormgen/pkg/template.go
+++ b/cmd/gormgen/pkg/template.go
@@ -136,6 +136,28 @@ func (qb *{{$queryBuilderName}}) Where{{call $.Helpers.Titelize .FieldName}}(p d
 	return qb
 }
 
+func (qb *{{$queryBuilderName}}) Where{{call $.Helpers.Titelize .FieldName}}In(value []{{.FieldType}}) *{{$queryBuilderName}} {
+	 qb.where = append(qb.where, struct {
+		prefix string
+		value interface{}
+	}{
+		fmt.Sprintf("%v %v ?", "{{.ColumnName}}", "IN"),
+		value,
+	})
+	return qb
+}
+
+func (qb *{{$queryBuilderName}}) Where{{call $.Helpers.Titelize .FieldName}}NotIn(value []{{.FieldType}}) *{{$queryBuilderName}} {
+	 qb.where = append(qb.where, struct {
+		prefix string
+		value interface{}
+	}{
+		fmt.Sprintf("%v %v ?", "{{.ColumnName}}", "NOT IN"),
+		value,
+	})
+	return qb
+}
+
 func (qb *{{$queryBuilderName}}) OrderBy{{call $.Helpers.Titelize .FieldName}}(asc bool) *{{$queryBuilderName}} {
 	order := "DESC"
 	if asc {
diff --git a/internal/api/repository/db_repo/README.md b/internal/api/repository/db_repo/README.md
new file mode 100644
index 0000000..fabe866
--- /dev/null
+++ b/internal/api/repository/db_repo/README.md
@@ -0,0 +1,51 @@
+## 使用示例
+
+以 `user_demo` 为例：
+
+```go
+// 查询：多条 + 分页 
+page := 2
+num := 2
+offset := (page - 1) * num
+
+user, err = user_demo_repo.NewQueryBuilder().
+    WhereIdNotIn([]int32{1, 2, 3}).
+    WhereUserName(db_repo.EqualPredicate, "tom").
+    Limit(num).
+    Offset(offset).
+    QueryAll(u.db.GetDbR().WithContext(ctx.RequestContext()))
+
+// 查询：总数
+count, err := user_demo_repo.NewQueryBuilder().
+    WhereIdNotIn([]int32{1, 2, 3}).
+    WhereUserName(db_repo.EqualPredicate, "tom").
+    Count(u.db.GetDbR().WithContext(ctx.RequestContext()))
+
+// 查询：单条
+user, err = user_demo_repo.NewQueryBuilder().
+    WhereUserName(db_repo.EqualPredicate, "tom").
+    QueryOne(u.db.GetDbR().WithContext(ctx.RequestContext()))
+
+// 创建
+model := user_demo_repo.NewModel()
+model.UserName = user.UserName
+model.NickName = user.NickName
+model.Mobile = user.Mobile
+
+id, err = model.Create(u.db.GetDbW().WithContext(ctx.RequestContext()))
+
+// 编辑
+model := user_demo_repo.NewModel()
+model.Id = id
+
+data := map[string]interface{}{
+    "nick_name": nickname,
+}
+
+err = model.Updates(u.db.GetDbW().WithContext(ctx.RequestContext()), data)
+
+// 删除
+model := user_demo_repo.NewModel()
+model.Id = id
+err = model.Delete(u.db.GetDbW().WithContext(ctx.RequestContext()))
+```
\ No newline at end of file
diff --git a/internal/api/repository/db_repo/user_demo_repo/gen_user_demo.go b/internal/api/repository/db_repo/user_demo_repo/gen_user_demo.go
index 3597bf3..f407062 100755
--- a/internal/api/repository/db_repo/user_demo_repo/gen_user_demo.go
+++ b/internal/api/repository/db_repo/user_demo_repo/gen_user_demo.go
@@ -120,6 +120,28 @@ func (qb *userDemoRepoQueryBuilder) WhereId(p db_repo.Predicate, value int32) *u
 	return qb
 }
 
+func (qb *userDemoRepoQueryBuilder) WhereIdIn(value []int32) *userDemoRepoQueryBuilder {
+	qb.where = append(qb.where, struct {
+		prefix string
+		value  interface{}
+	}{
+		fmt.Sprintf("%v %v ?", "id", "IN"),
+		value,
+	})
+	return qb
+}
+
+func (qb *userDemoRepoQueryBuilder) WhereIdNotIn(value []int32) *userDemoRepoQueryBuilder {
+	qb.where = append(qb.where, struct {
+		prefix string
+		value  interface{}
+	}{
+		fmt.Sprintf("%v %v ?", "id", "NOT IN"),
+		value,
+	})
+	return qb
+}
+
 func (qb *userDemoRepoQueryBuilder) OrderById(asc bool) *userDemoRepoQueryBuilder {
 	order := "DESC"
 	if asc {
@@ -141,6 +163,28 @@ func (qb *userDemoRepoQueryBuilder) WhereUserName(p db_repo.Predicate, value str
 	return qb
 }
 
+func (qb *userDemoRepoQueryBuilder) WhereUserNameIn(value []string) *userDemoRepoQueryBuilder {
+	qb.where = append(qb.where, struct {
+		prefix string
+		value  interface{}
+	}{
+		fmt.Sprintf("%v %v ?", "user_name", "IN"),
+		value,
+	})
+	return qb
+}
+
+func (qb *userDemoRepoQueryBuilder) WhereUserNameNotIn(value []string) *userDemoRepoQueryBuilder {
+	qb.where = append(qb.where, struct {
+		prefix string
+		value  interface{}
+	}{
+		fmt.Sprintf("%v %v ?", "user_name", "NOT IN"),
+		value,
+	})
+	return qb
+}
+
 func (qb *userDemoRepoQueryBuilder) OrderByUserName(asc bool) *userDemoRepoQueryBuilder {
 	order := "DESC"
 	if asc {
@@ -162,6 +206,28 @@ func (qb *userDemoRepoQueryBuilder) WhereNickName(p db_repo.Predicate, value str
 	return qb
 }
 
+func (qb *userDemoRepoQueryBuilder) WhereNickNameIn(value []string) *userDemoRepoQueryBuilder {
+	qb.where = append(qb.where, struct {
+		prefix string
+		value  interface{}
+	}{
+		fmt.Sprintf("%v %v ?", "nick_name", "IN"),
+		value,
+	})
+	return qb
+}
+
+func (qb *userDemoRepoQueryBuilder) WhereNickNameNotIn(value []string) *userDemoRepoQueryBuilder {
+	qb.where = append(qb.where, struct {
+		prefix string
+		value  interface{}
+	}{
+		fmt.Sprintf("%v %v ?", "nick_name", "NOT IN"),
+		value,
+	})
+	return qb
+}
+
 func (qb *userDemoRepoQueryBuilder) OrderByNickName(asc bool) *userDemoRepoQueryBuilder {
 	order := "DESC"
 	if asc {
@@ -183,6 +249,28 @@ func (qb *userDemoRepoQueryBuilder) WhereMobile(p db_repo.Predicate, value strin
 	return qb
 }
 
+func (qb *userDemoRepoQueryBuilder) WhereMobileIn(value []string) *userDemoRepoQueryBuilder {
+	qb.where = append(qb.where, struct {
+		prefix string
+		value  interface{}
+	}{
+		fmt.Sprintf("%v %v ?", "mobile", "IN"),
+		value,
+	})
+	return qb
+}
+
+func (qb *userDemoRepoQueryBuilder) WhereMobileNotIn(value []string) *userDemoRepoQueryBuilder {
+	qb.where = append(qb.where, struct {
+		prefix string
+		value  interface{}
+	}{
+		fmt.Sprintf("%v %v ?", "mobile", "NOT IN"),
+		value,
+	})
+	return qb
+}
+
 func (qb *userDemoRepoQueryBuilder) OrderByMobile(asc bool) *userDemoRepoQueryBuilder {
 	order := "DESC"
 	if asc {
@@ -204,6 +292,28 @@ func (qb *userDemoRepoQueryBuilder) WhereIsDeleted(p db_repo.Predicate, value in
 	return qb
 }
 
+func (qb *userDemoRepoQueryBuilder) WhereIsDeletedIn(value []int32) *userDemoRepoQueryBuilder {
+	qb.where = append(qb.where, struct {
+		prefix string
+		value  interface{}
+	}{
+		fmt.Sprintf("%v %v ?", "is_deleted", "IN"),
+		value,
+	})
+	return qb
+}
+
+func (qb *userDemoRepoQueryBuilder) WhereIsDeletedNotIn(value []int32) *userDemoRepoQueryBuilder {
+	qb.where = append(qb.where, struct {
+		prefix string
+		value  interface{}
+	}{
+		fmt.Sprintf("%v %v ?", "is_deleted", "NOT IN"),
+		value,
+	})
+	return qb
+}
+
 func (qb *userDemoRepoQueryBuilder) OrderByIsDeleted(asc bool) *userDemoRepoQueryBuilder {
 	order := "DESC"
 	if asc {
@@ -225,6 +335,28 @@ func (qb *userDemoRepoQueryBuilder) WhereCreatedAt(p db_repo.Predicate, value ti
 	return qb
 }
 
+func (qb *userDemoRepoQueryBuilder) WhereCreatedAtIn(value []time.Time) *userDemoRepoQueryBuilder {
+	qb.where = append(qb.where, struct {
+		prefix string
+		value  interface{}
+	}{
+		fmt.Sprintf("%v %v ?", "created_at", "IN"),
+		value,
+	})
+	return qb
+}
+
+func (qb *userDemoRepoQueryBuilder) WhereCreatedAtNotIn(value []time.Time) *userDemoRepoQueryBuilder {
+	qb.where = append(qb.where, struct {
+		prefix string
+		value  interface{}
+	}{
+		fmt.Sprintf("%v %v ?", "created_at", "NOT IN"),
+		value,
+	})
+	return qb
+}
+
 func (qb *userDemoRepoQueryBuilder) OrderByCreatedAt(asc bool) *userDemoRepoQueryBuilder {
 	order := "DESC"
 	if asc {
@@ -246,6 +378,28 @@ func (qb *userDemoRepoQueryBuilder) WhereUpdatedAt(p db_repo.Predicate, value ti
 	return qb
 }
 
+func (qb *userDemoRepoQueryBuilder) WhereUpdatedAtIn(value []time.Time) *userDemoRepoQueryBuilder {
+	qb.where = append(qb.where, struct {
+		prefix string
+		value  interface{}
+	}{
+		fmt.Sprintf("%v %v ?", "updated_at", "IN"),
+		value,
+	})
+	return qb
+}
+
+func (qb *userDemoRepoQueryBuilder) WhereUpdatedAtNotIn(value []time.Time) *userDemoRepoQueryBuilder {
+	qb.where = append(qb.where, struct {
+		prefix string
+		value  interface{}
+	}{
+		fmt.Sprintf("%v %v ?", "updated_at", "NOT IN"),
+		value,
+	})
+	return qb
+}
+
 func (qb *userDemoRepoQueryBuilder) OrderByUpdatedAt(asc bool) *userDemoRepoQueryBuilder {
 	order := "DESC"
 	if asc {